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Kenneth D. Hopkins Robert A. Smith Warren G. Findley John N. McCall 《Psychometrika》1967,32(3):355-360
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Stimulus factors in aversive controls: conditioned suppression after equal training to two stimuli 下载免费PDF全文
Howard S. Hoffman Warren L. Selekman Morton Fleshler 《Journal of the experimental analysis of behavior》1966,9(6):649-653
Pigeons trained to peck a key for food were periodically presented with tones ending with electrical shock until tone presentation consistently suppressed ongoing pecks. Shock was then discontinued and gradients of stimulus generalization were assessed by presenting tones with frequencies above, below, and at the frequencies of those used to develop conditioned suppression. When the training tones had frequencies at 670 and 1500 cps, resulting gradients were bi-modal with peak suppression at 670 and 1500 cps. Of the other test tones, 1000 cps produced the most suppression. When the training tones had frequencies at 450 and 2250 cps, bi-modal gradients were again obtained with peak suppression to the 450 and 2250 cps tones. Of the other test tones, 1000 cps produced the least suppression. These results support the hypothesis that generalized response tendencies summate. 相似文献
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Warren R. Stanton 《Current psychology (New Brunswick, N.J.)》1993,12(1):26-45
Prominent stage theories of cognitive development show evidence of a structure in which each stage contains a number of subsidiary
levels. Comparisons of the stages in these theories have commonly been made through the established links with stages of Piaget’s
theory. In response to Kagan’s criticism of Piaget’s theory, features of these developmental theories were used in this paper
as the basis for a general framework of interactive stages and levels of cognitive operations. Some implications of the proposed
framework in relation to cognitive development theories and directions for further research are examined. Further application
of this framework could help to identify commonalities in cognitive operations across different contents, contexts and cultures. 相似文献
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This article reviews the results of survey methodological research that illustrate phenomena of potential interest to investigators of memory, and also reviews psychological research designed to explore some of these phenomena under controlled laboratory conditions. We classify the phenomena reviewed into broad categories of remembering what events occurred, remembering when events occurred, and estimation and reconstruction processes used in reporting recurring events. We delineate the contributions of this research for our understanding of memory phenomena and show where this research has revealed gaps in our existing theories and knowledge. These findings present challenges for future collaboration between cognitive psychologists and survey methodologists. 相似文献
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The ability of listeners to distinguish between different arrangements of the same three vowels was investigated for repeating sequences having item durations ranging from 10 msec (single glottal pulses) up to several seconds/vowel. Discrimination was accomplished with ease by untrained subjects at all item durations. From 30 through 100 msec/vowel, an especially interesting phenomenon was encountered: The sequences of steady-state vowels were organized into words, with different words heard for the different arrangements of items. In a second experiment, repeating sequences of random arrangements of 10 40-msec vowels were employed. When sets of four such sequences were presented to listeners, distinctive words were heard, which permitted each arrangement to be discriminated from the others. In addition, minimal differences (reversing the order of a single contiguous pair of vowels) in the 10-item sequences could be detected via verbal mediation. Hypotheses are offered concerning mechanisms responsible for these results. 相似文献
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Naming multisyllabic words 总被引:6,自引:0,他引:6
D Jared M S Seidenberg 《Journal of experimental psychology. Human perception and performance》1990,16(1):92-105
The process of reading multisyllabic words aloud from print was examined in 4 experiments. Experiment 1 used multisyllabic words that vary in terms of the consistency of component spelling-sound correspondences. The stimuli were regular, regular inconsistent, and exception words analogous to the monosyllabic items used in previous studies. Both regular inconsistent and exception words produced longer naming latencies than regular words. In Experiment 2 these differences between word types were found to be limited to lower frequency items. Experiment 3 showed that effects of number of syllables on naming latency are also limited to lower frequency words when the stimulus display forced subjects to use syllabic units. Thus, frequency modulates the effects of two aspects of lexical structure-consistency of spelling-sound correspondences and number of syllables. The results suggest that the naming of multisyllabic words draws on some of the same knowledge representations and processes as monosyllabic words; however, naming does not require syllabic decomposition. The results are discussed in the context of current models of naming. 相似文献